BASIC BASIC COMPUTER COMPUTER CONCEPTSCONCEPTS

COMPUTERCOMPUTERCOMPUTERCOMPUTER An electronic system that can be

programmed to accept, store and manipulate/process data to come out with meaningful output referred to as information

It carries out its task/s through a set of instructions called a computer program.

Processing of Repetitive, High Volume Applications

Self-Operation

Decision Making

Capabilities of Capabilities of ComputerComputer

Failure to derive meaning from objects

Inability to generate information on its own

Failure to correct wrong answer

Limitations of ComputerLimitations of Computer

NOTEBOOK/LAPTOP

DESKTOP/ PC MINICOMPUTER MAINFRAME NETWORK

Classification by SizeClassification by Size

PEOPLEWARE Managers System

Analyst/Designer Programmers Operators/Technicians Users SOFTWARE System Software Application Software HARDWARE

Components of Computer Components of Computer SystemSystem

HARDWAREHARDWARE

This refers to the physical equipment that make up a computer system

SYSTEM UNIT Microprocessor Memory Read-Only Memory(ROM) Random Access Memory (RAM) INPUT DEVICES STORAGE DEVICES OUTPUT DEVICES

HARDWARE HARDWARE COMPONENTSCOMPONENTS

SYSTEM UNITSYSTEM UNIT

MOTHERBOARDMOTHERBOARD

This is the “BRAIN” of a Computer System

It is the device that fetches, decodes and executes instructions

Transfers data between the memory and other peripheral devices through data bus

For Personal/ Micro Computers, this is referred to as the Micro Chip

Central Processing UnitCentral Processing Unit

MEMORY

MEMORY

INPUTINPUTInput device is a unit that is used to get data from the user into the central processing unit.

INPUTINPUT

Keyboard and Keyboard and MouseMouse

Card ReaderCard Reader Barcode ReaderBarcode Reader

INPUTINPUT

Data instructions enter main storage and are held until needed to be worked on.

It can be an auxiliary or backing storage.

STORAGESTORAGE

DisketteDiskette

STORAGESTORAGE

Magnetic TapeMagnetic Tape

Universal Serial Bus Universal Serial Bus SticksSticks

CDs/DVDsCDs/DVDs

STORAGESTORAGE

Hard DiskHard Disk

STORAGESTORAGE

Results are taken from main storage and fed to an output device.

Shows people the processed data-information in a ready-to-use form.

OUTPUTOUTPUT

OUTPUTOUTPUT

MONITORMONITOR

PrinterPrinter

OUTPUTOUTPUT

Set of programs, procedures, routines and documents associated with the operation of a computer system.

Software is the name given to the program that causes a computer to carry out particular operations

SOFTWARESOFTWARE

Programming Languages - medium used by humans to communicate instructions to a computer.

Systems Software - collection of programs which contribute to the control and performance of the computer

Application Software - programs designed to perform specific jobs such as spreadsheets, wordprocessors, graphic softwares system

Types of SoftwareTypes of Software

The most important component of computer system – people use the power of the computer for some purpose.

PEOPLEWAREPEOPLEWARE

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Input, Processing, Output, or StorageOutput, or Storage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage

Recognize? Recognize? Input, Processing, Output, or Input, Processing, Output, or

StorageStorage